title: Longitudinal consequences of adolescent bullying perpetration and victimisation: a study of students in Victoria, Australia.
abstract: OBJECTIVE
  To examine the associations between self-reported bullying perpetration and victimisation in Years 7 and 10 and a range of psychosocial outcomes in Year 11.
  
  
  METHODS
  This analysis draws on data from the International Youth Development Study, a longitudinal study of 5769 students from Victoria, Australia and Washington State, United States who were recruited through schools in Years 5, 7 and 9 in 2002. Data for the current results are taken from participants in the youngest (Year 5) Victorian cohort of the study.
  
  
  RESULTS
  Rates of bullying victimisation exceeded 30% and up to one in five students had engaged in bullying. Adjusted logistic regression analyses revealed that bullying perpetration, and bullying victimisation in Year 7 did not significantly predict psychosocial outcomes in Year 11. Bullying perpetration in Year 10 was associated with an increased likelihood of theft, violent behaviour and binge drinking. Year 10 bullying victimisation was associated with an increased likelihood of Year 11 depressive symptoms.
  
  
  CONCLUSIONS
  Prevention approaches that target bullying perpetration and victimisation are necessary. Programmes that lessen bullying may also have an impact on other proximally related behaviours, including binge drinking and depression.
authors.affiliation: Centre for Adolescent Health, Murdoch Childrens Research Institute, VIC, Australia. sheryl.hemphill@acu.edu.au
authors.forename: Sheryl A
authors.initials: SA
authors.lastname: Hemphill
authors.forename: Aneta
authors.initials: A
authors.lastname: Kotevski
authors.forename: Todd I
authors.initials: TI
authors.lastname: Herrenkohl
authors.forename: Lyndal
authors.initials: L
authors.lastname: Bond
authors.forename: Min Jung
authors.initials: MJ
authors.lastname: Kim
authors.forename: John W
authors.initials: JW
authors.lastname: Toumbourou
authors.forename: Richard F
authors.initials: RF
authors.lastname: Catalano
mesh_terms: D000293:Adolescent; D058445:Bullying / Q000523:psychology*; D019548:Crime Victims / Q000523:psychology*; D006801:Humans; D016015:Logistic Models; D008137:Longitudinal Studies; D010379:Peer Group; D012574:Schools; D012931:Social Environment; D013334:Students / Q000523:psychology*; D011795:Surveys and Questionnaires; D014739:Victoria